Lava Stone is a grounding stone that strengthens one's connection to Mother Earth. It gives us strength and courage, allowing us stability through times of change. It provides guidance and understanding in situations where we may need to "bounce back". A calming stone, it is very useful in dissipating anger.
Green Aventurine comforts, harmonizes, protects the heart, and can help attract love later in life. It is one of the premier stones to attract luck, abundance and success. 
Green Aventurine has a particularly soothing energy behind it, and is recommended for working through unresolved emotional issues.